Sub-Nanosecond Thermal Transport in Micro/Nanostructures

界面热阻和异常热扩散强烈阻碍高功率超短脉冲激光相互作用中的能量传输，产生比传统长时间尺度分析所预期的更高的峰值温度。 这可能因此增强或减弱激光应用的有效性。 本研究将透过全面的计算与实验研究，探讨微奈米结构材料的亚奈秒热传输。 分子动力学模拟和飞秒激光实验将被用来表征这两种现象。对超短长度和时间尺度的当代探索正在为新的纳米技术发展创造机会。 未来的科学发展将不可避免地关注超短时间尺度激光与微米和纳米结构材料的相互作用，但目前在这些极端领域的研究是有限的。 该项目将揭示亚纳秒激光诊断和纳米材料加工的进一步发展所必需的信息，并提供对纳米级热工程的更好理解。

Interfacial thermal resistance and anomalous thermal diffusion strongly impede energy transport in high power, ultra-short pulse laser interactions, producing higher peak temperatures than expected from conventional long-time scale analyses. This may consequently enhance or diminish the effectiveness of the laser application. Through a comprehensive computational and experimental study, this research will investigate sub-nanosecond thermal transport in micro-and nanostructured materials. Molecular dynamics simulation and femtosecond laser experiments will be performed to characterized the two phenomena. Contemporary exploration of ultra-short length and time scales are creating opportunities for new nanotechnology developments. Future scientific progression will inevitably be concerned with the interaction of ultra-short time scale lasers and micro- and nanostructured materials, but current research in these combined extreme areas is limited. This project will reveal information essential to further advancements in sub-nanosecond laser diagnostics and processing of nanomaterials as well as provide an improved understanding of nanoscale thermal engineering.